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Bubbles and swirls in moldavite (natural glass)
Inclusions of hematite in aquamarine, Tanzania
Midge included in amber from the Baltic coast, polarised light
Stress fissure («sun spangle») in baltic amber
Dendrites in agate
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia

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© SGG/SSG 2019

 

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